thanks. will the flash-memory be lost then? or just the user-memory? ---------- > From: MenacerTW@aol.com > To: assembly-89@lists.ticalc.org > Subject: Re: A89: TI-89 hang... > Date: 20. oktober 1998 22:56 > > > The only way I could solve this problem was by removing the small backup > battery. > it is kept in by a piece of plastic and a screw behind the battery plate.